Diffusion coefficient of gases and vapors

The lookup table diffusion is assumed that the gas (steam) is diffused into the space occupied by another gas (steam);Both bodies are under constant pressure and temperature conditions (the latter is listed in the table).Diffusion coefficients K are given in cm2/ sec.

Gases

t (° C)

TO

Argon - Helium

15

0.70

Hydrogen - Nitrogen

12.5

0.73

- air

0

0.64

- oxygen

0

0.69

- oxygen

14

0.77

- methane

0

0.62

- carbon monoxide

0

0.64

- carbon dioxide

0

0.54

- ethylene

0

0.48

The air - water vapor

0

0.22

- Steam

15

0.26

- oxygen

0

0.18

- Carbon disulfide

0

0.09

Oxygen - Nitrogen

0

0.18

- nitrogen

12.5

0.20

Carbon monoxide - ethylene

0

0.11

Carbon dioxide - Hydrogen

0

0.54

- hydrogen

18

0.60

- Steam

18

0.15

Benzene - hydrogen

0

0.29

- air

0

0.14

- oxygen

0

0.18

- methane

0

0.15

- carbon monoxide

0

0.13

Water vapor - hydrogen

0

0.69

- carbon dioxide

0

0.13

Acetic acid - hydrogen

0

0.40

- air

0

0.11

- carbon dioxide

0

0.07

Carbon disulfide - hydrogen

0

0.36

- air

0

0.09

- carbon dioxide

0

0.06

Amyl alcohol - hydrogen

0

0.23

- air

0

0.06

- carbon dioxide

0

0.04

Methyl alcohol - hydrogen

0

0.50

- air

0

0.13

- oxygen

0

0.18

- methane

0

0.15

- carbon monoxide

0

0.13

- carbon dioxide

0

0.08

Ethyl alcohol - hydrogen

0

0.37

- air

0

0.10

- carbon dioxide

0

0.07

 


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